40019895

素因数分解:

$3^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{109}}^1\times {\mathrm{199}}^1$

素因数の和:360

約数の個数: 48

約数和(自身を含む): 72072000

約数和(自身を除く): 32052105

約数列:

[1, 3, 5, 9, 15, 41, 45, 109, 123, 199, 205, 327, 369, 545, 597, 615, 981, 995, 1635, 1791, 1845, 2985, 4469, 4905, 8159, 8955, 13407, 21691, 22345, 24477, 40221, 40795, 65073, 67035, 73431, 108455, 122385, 195219, 201105, 325365, 367155, 889331, 976095, 2667993, 4446655, 8003979, 13339965, 40019895]

約数ペア:

[(1, 40019895), (3, 13339965), (5, 8003979), (9, 4446655), (15, 2667993), (41, 976095), (45, 889331), (109, 367155), (123, 325365), (199, 201105), (205, 195219), (327, 122385), (369, 108455), (545, 73431), (597, 67035), (615, 65073), (981, 40795), (995, 40221), (1635, 24477), (1791, 22345), (1845, 21691), (2985, 13407), (4469, 8955), (4905, 8159)]